Frequency multiband antenna with photonic bandgap material

Details Frequency multiband antenna with photonic bandgap material Frequency multiband antenna with photonic bandgap material

2003-10-23

2008-08-12

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Antenna components

C343S7000MS

Reexamination Certificate

active

07411564

ABSTRACT:
A frequency multiband antenna includes a photonic bandgap material having at least one band gap, one single periodicity defect of the bandgap material so as to produce several narrow bandwidths within the at least one band gap of the bandgap material, and an excitation device capable of transmitting and/or receiving electromagnetic waves within the narrow bandwidths.

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Chung K B et al:, “Defect modes in a two-dimensional square-latice photonic crystal”, Optics Communications, North-Holland Publishing Co. Amsterdam, NL, vol. 209, No. 4-6, 15 aout 2002 (Aug. 15, 2002), pp. 229-235, XP004375303, ISSN: 0030-4018 le document en entier.
Thevenot M et al:, “Directive Photonic-Bandgap Antennas”, IEEE Transactions on Microwave Theory and Techniques, IEEE Inc. New York, US, vol. 47, No. 11, novembre 1999 (Nov. 1999), pp. 2115-2121, PX0865109, ISSN: 0018-9480, figures 10, 11.
Shi B et al:, “Defective Photonic Crystals With Greatly Enhanced Second-Harmonic Generation”, Optics Letters, Optical Society of America, Washington, US, vol. 26, No. 15, 1 aout 2001 (Aug. 1, 2001), pp. 1194-1196, XP001110592, ISSN: 0146-9592, le document en entier.

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